PMC:7301188 / 21518-21550
Annnotations
LitCovid-sentences
{"project":"LitCovid-sentences","denotations":[{"id":"T252","span":{"begin":0,"end":32},"obj":"Sentence"}],"namespaces":[{"prefix":"_base","uri":"http://pubannotation.org/ontology/tao.owl#"}],"text":" χ2, P χ 2 = 12.884 P \u003c 0.05"}